208203280

素因数分解:

$2^4\times 5^1\times {\mathrm{2602541}}^1$

素因数の和:2602554

約数の個数: 20

約数和(自身を含む): 484072812

約数和(自身を除く): 275869532

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2602541, 5205082, 10410164, 13012705, 20820328, 26025410, 41640656, 52050820, 104101640, 208203280]

約数ペア:

[(1, 208203280), (2, 104101640), (4, 52050820), (5, 41640656), (8, 26025410), (10, 20820328), (16, 13012705), (20, 10410164), (40, 5205082), (80, 2602541)]